Integrated design. Disassembly and reassembly have no influence on point of impact.

Ammunition

The DSR 1 Subsonic is adjusted to use the subsonic type of ammunition in calibre 7,62mm x 51 / .308 Win. Barrel length
is 310 mm. The 8 inch twist rate of the barrel is especially adapted to stabilize the heavy projectiles of subsonic ammunition.

This ammunition has the same dimensions as standard ammunition of the same calibre. The propellant charge is reduced
to keep the bullet velocity (app. 320 m/s) below the speed of sound (340 m/s). This avoids the super sonic crack of standard
ammunition. No type of suppressor can reduce the super sonic crack of a bullet flying at super sonic speed.